Select the General tab.

Mail Account = You can give the name of the mail account anything you'd like.

User Information:

Name = Enter your name.
E-mail address = Enter your e-mail address. (username@ispname.com)

Server Information:

My incoming mail server is a POP3 server = This should be set to POP3.

Incoming mail (POP3) = pop.gmail.com

Outgoing mail (SMTP) = smtp.gmail.com

Incoming Mail Server:

Account name = Enter your full e-mail address. (username@ispname.com)
Password = Enter the password to your e-mail account.

Select Remember password.

Important: Passwords are case-sensitive. Ensure your Caps Lock is disabled.

Outgoing Mail Server:

Towards the bottom, left corner there is a box: My server requires authentication. Check it.

To the right, click the Settings button.

Select Log on using.

Account name = Enter your full e-mail address. (username@ispname.com)
Password = Enter the password to your e-mail account.

Important: Passwords are case-sensitive. Ensure your Caps Lock is disabled.

Select Remember password

Important: do NOT select Log on using 'Secure Password Authentication'.

Select the Advanced tab.

Outgoing mail (SMTP): make sure it is set to 465 and SSL is checked

Incomming mail (POP3): make sure it is set to 995 and SSL is checked

Server Timeouts: Set all the way to long (5 minutes)

Click OK to finish the configuration.